I was actually imagining something a little different: a "pathway" of tiles, one tile wide, bounded by impassable terrain and/or the edge of the map, leading into the playing area itself. (Of course the "pathway" would consist of tiles where cities cannot be built
) Presumably the AI settler unit would trudge along the path until it reached the board and settleable tiles (and, no, I don't think "settleable" is actually a word ...
Hi Oz, I never tried that. May be the Roman warriors march to the settler and kill him.
And for the word "settleable": I think the word "disbandable" from my last post fits to the same category.